ALSA: lx6464es - make 1 bit signed bitfield unsigned

converts a 1 bit signed bitfield to an unsigned.
Reported-by: NDr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: NTim Blechmann <tim@klingt.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/lx6464es/lx6464es.c

@@ -425,7 +425,7 @@ static int lx_pcm_hw_free(struct snd_pcm_substream *substream)
 static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream)
 {
 	struct snd_pcm_substream *substream = lx_stream->stream;
-	const int is_capture = lx_stream->is_capture;
+	const unsigned int is_capture = lx_stream->is_capture;
 
 	int err;
 
@@ -473,7 +473,7 @@ static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream)
 
 static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream)
 {
-	const int is_capture = lx_stream->is_capture;
+	const unsigned int is_capture = lx_stream->is_capture;
 	int err;
 
 	snd_printd(LXP "stopping: stopping stream\n");

sound/pci/lx6464es/lx6464es.h

@@ -60,7 +60,7 @@ struct lx_stream {
 	snd_pcm_uframes_t          frame_pos;
 	enum lx_stream_status      status; /* free, open, running, draining
 					    * pause */
-	int                        is_capture:1;
+	unsigned int               is_capture:1;
 };
 
 

sound/pci/lx6464es/lx_core.c

@@ -1152,7 +1152,7 @@ static int lx_interrupt_request_new_buffer(struct lx6464es *chip,
 					   struct lx_stream *lx_stream)
 {
 	struct snd_pcm_substream *substream = lx_stream->stream;
-	int is_capture = lx_stream->is_capture;
+	const unsigned int is_capture = lx_stream->is_capture;
 	int err;
 	unsigned long flags;